Calling Dialogfragment From Fragment (not Fragmentactivity)?

I do have a FragmentActivity which contains a Fragment list (with methods to navigate between them). In one of those fragments I need to call a DialogFragment to display a 'zoom' o

Solution 1:

When you create a new Dialog, you can simply call it using this (very) simple method from a Fragment.

DialogFragmentdialog= DialogFragment.instantiate(getActivity(), "Hello world");
dialog.show(getFragmentManager(), "dialog");

If you want to use your own dialog, please use that kind of code.

publicclassMyDialogFragmentextendsDialogFragment
{
    //private View pic;publicMyDialogFragment()
    {
    }

    @Overridepublic Dialog onCreateDialog(Bundle savedInstanceState)
    {
        Viewview= getActivity().getLayoutInflater().inflate(R.layout.fragment_my_dialog, newLinearLayout(getActivity()), false);

        // Retrieve layout elementsTextViewtitle= (TextView) view.findViewById(R.id.text_title);

        // Set values
        title.setText("Not perfect yet");

        // Build dialogDialogbuilder=newDialog(getActivity());
        builder.requestWindowFeature(Window.FEATURE_NO_TITLE);
        builder.getWindow().setBackgroundDrawable(newColorDrawable(android.graphics.Color.TRANSPARENT));
        builder.setContentView(view);
        return builder;
    }
}

Solution 2:

it will help if you need to show a fragment dialog inside a fragment

DialogFragment

publicclassDialogBoxFragmentextendsDialogFragment {
    @Overridepublic View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState){
        ViewrootView= inflater.inflate(R.layout.dialog_fragment, container, false);
        getDialog().setTitle("simple dialog");
        return rootView;
    }
}

Now showing the fragment dialog into a fragment

DialogFragmentdialogFragment=newDialogFragment ();
                            dialogFragment.show(getActivity().getFragmentManager(),"simple dialog");

Solution 3:

Check for import statements. If we use

ExampleDialogFragmentdialog=newExampleDialogFragment ();
dialog .show(getFragmentManager(), "example");

Then make sure to import

import android.app.DialogFragment;
import android.app.Fragment;

not from the support library.

import android.support.v4.app.DialogFragment;
import android.support.v4.app.Fragment;

Solution 4:

For me, it was the following: https://stackoverflow.com/a/25056160/2413303

The most important parts are that you need to have a Callback for your dialog fragment:

publicclassMyFragmentextendsFragmentimplementsMyDialog.Callback

Which kinda works like this

publicclassMyDialogextendsDialogFragmentimplementsView.OnClickListener {

publicstaticinterfaceCallback
{
    publicvoidaccept();
    publicvoiddecline();
    publicvoidcancel();
}

You make the Activity show the dialog for you from the Fragment:

MyDialogdialog=newMyDialog();
    dialog.setTargetFragment(this, 1); //request code
    activity_showDialog.showDialog(dialog);

Where showDialog() for me was the following method:

@OverridepublicvoidshowDialog(DialogFragment dialogFragment)
{
    FragmentManagerfragmentManager= getSupportFragmentManager();
    dialogFragment.show(fragmentManager, "dialog");
}

And you call back onto your target fragment:

@OverridepublicvoidonClick(View v)
{
    Callbackcallback=null;
    try
    {
        callback = (Callback) getTargetFragment();
    }
    catch (ClassCastException e)
    {
        Log.e(this.getClass().getSimpleName(), "Callback of this class must be implemented by target fragment!", e);
        throw e;
    }

    if (callback != null)
    {
        if (v == acceptButton)
        {   
            callback.accept();
            this.dismiss();
        }
        elseif (...) {...}
    }
    else
    {
        Log.e(this.getClass().getSimpleName(), "Callback was null.");
    }
}

Solution 5:

Try this simple class I did in a myown project:

publicclassUIDialogMessageextendsDialogFragment {

    publicstatic UIDialogMessage newInstance(int aTitleID, int aMessageID) {
        return newInstance(aTitleID, aMessageID, true);
    }

    publicstatic UIDialogMessage newInstance(int aTitleID, int aMessageID, boolean aDoIt) {
        UIDialogMessagefrag=newUIDialogMessage();
        Bundleargs=newBundle();
        args.putInt("titleID", aTitleID);
        args.putInt("messageID", aMessageID);
        args.putBoolean("keyBoolDoSomething", aDoIt);
        frag.setArguments(args);
        return frag;
    }

    @Overridepublic Dialog onCreateDialog(Bundle savedInstanceState) {
        intmTitleID= getArguments().getInt("titleID");
        intmMessageID= getArguments().getInt("messageID");
        finalboolean mDoIt= getArguments().getBoolean("keyBoolDoSomething", true);

        returnnewAlertDialog.Builder(getActivity())
                .setTitle(mTitleID)
                .setMessage(mMessageID)
                .setPositiveButton(getResources().getString(R.string.dialog_button_gotcha),
                        newDialogInterface.OnClickListener() {

                            publicvoidonClick(DialogInterface dialog, int whichButton) {
                                dialog.dismiss();
                                if (mDoIt)
                                    doIt();
                            }
                        })
                .create();
    }

    privatevoiddoIt() {
        ...
    }
}

and you can call from a Fragment as shown below:

showDialog(R.string.dialog_title, R.string.dialog_message, false);

privatevoidshowDialog(int aTitleID, int aMessageID, boolean aDoIt) {
        DialogFragment uiDialogMessage = UIDialogMessage.newInstance(aTitleID, aMessageID, aDoIt);
        uiDialogMessage.show(getFragmentManager(), "dialog");
    }